YearPToutPBase 100
201190.98%100
201293.2%100.6
201394.52%101.3
201493.46%101.9
201594.66%102.6
201696.41%103.2
2017100%103.9
201897.75%104.5
201996.22%105.2
202096.82%105.8
202197.51%106.5
Evolution : 6 % entre 2011 et 2021 soit 0.57 % de gain par an.